Design and implementation of high-speed laser spot detection systems
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1.
Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
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Received Date:
2014-06-19
Accepted Date:
2014-07-11
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Abstract
In order to realize beacon acquisition, tracking and pointing(ATP) of laser communication, a high speed laser spot detection system was designed based on field-programmable gate array and embedded image processing technology. Laser spots of targets in the sequence images with 300pixel300pixel resolution and 1000Hz frame rate were extracted. 1-D filtering operator position filter was used to process the images and the hardware was implemented at the same time. After filtering, threshold segmentation, morphological opening operation and connected region analysis, centroid position information of laser spot were extracted. The experimental results show that the system is capable of real-time processing of high-frame rate images containing targets' laser spot. The extracting frequency of target centroid can meet the requirement of the dynamic link setup of laser communication.
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